Rewrite the following sentences using"it+be+adjective+(of/for+noun/pronoun)

rewrite the following sentences using"it+be+adjective+(of/for+noun/pronoun)
1 anna was brave to spend the night in the old house alone 
2 such a wonderful performance was interesting to hear
3 you were very kind to give presents to steet children before the neww school year 
4 english is necessary to learn now 
5 our living environment is so important to preserve